Really need engine help, Im lost
Im in need of a little guidance about what to do, sorry this is kinda long.
It started a few weeks ago, my 96 Tbird (176,000)wouldn't start at all for a few minutes and when it did finally start it would barely idle with the gas pedal most of the way down and it blew black smoke real bad. I had to let it sit in town because it wouldn't stay running no matter how much gas I gave it. The next day, it starts fine and I drive it 4 or 5 miles home, it does fine. The next morning, it would hardly run again and was blowing a lot of smoke. I put some gas treatment in the tank and the next day it was fine again so I started off to work, it started missing again and with the pedal all the way down, it would only go 2 to 3 MPH and left a trail of blake smoke behind me. I had to let it sit again. I got it home and checked the codes. They were a P1443 EVAP purge valve/sensor, PO420 System efficiancy below threshold (BANK 1) , and PO172 and PO175- both banks rich.
The PO420 was a previous code, it was on for awhile before this happened. I replaced the drivers rear oxygen sensor and then the front. checked the cat, replaced the fuel filter, replaced the ECT sensor, checked the pressure reulator to see if it was leaking fuel into the engine,checked for vacuum leaks, replaced most of the vacuum lines, fuel pressure is 32 PSI at idle, 38 or 40 reving.
I am at a total loss as what to do and now I can't even get it started at all. Before I could start it but it wouldn't stay running long no matter what I did. Could it have jumped time? I am getting good, consistant spark at the plugs. I reset the codes when I read them, but the SES light has not come back on since. This has been going on for 3 weeks know, and I cant even take it out of my driveway.
Any help is greatly appreciated, thank you.
Last edited by T/A; 09-10-2005 at 11:03 PM.